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IPv4CIDR::match()   A

↳ Parent: IPv4CIDR

Complexity

Conditions 1
Paths 1

Size

Total Lines 11

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 11
rs 9.9
c 0
b 0
f 0
cc 1
nc 1
nop 1
1 
<?php
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namespace Safelist\Definition;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Represents an IPv4 CIDR notation definition

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @author Marc Seiler <[email protected]>

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @copyright Copyright &copy; Marc Seiler 2015-

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @license http://www.opensource.org/licenses/bsd-license.php New BSD License

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class IPv4CIDR extends Definition

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $regexp = "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\/([0-9]{1,2})?$/";

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function validate()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return preg_match($this->regexp, $this->_definition) === 1;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function match($value)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        // Adapted from https://gist.github.com/tott/7684443

            


            
                                                        
            
                                    
            
            

                
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        list($range, $netmask) = explode('/', $this->_definition, 2);

            


            
                                                        
            
                                    
            
            

                
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        $rangeDecimal = ip2long($range);

            


            
                                                        
            
                                    
            
            

                
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        $ipDecimal = ip2long($value);

            


            
                                                        
            
                                    
            
            

                
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        $wildcardDecimal = pow(2, (32 - $netmask)) - 1;

            


            
                                                        
            
                                    
            
            

                
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        $netmaskDecimal = ~ $wildcardDecimal;

            


            
                                                        
            
                                    
            
            

                
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        return (($ipDecimal & $netmaskDecimal) == ($rangeDecimal & $netmaskDecimal));

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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